1 8 | × | 3 | x | ÷ | ( | 1 8 | x | + | 3 | ) | − | 1281 1000 | = | 0 |
| 方程两边同时乘以: | ( | 1 8 | x | + | 3 | ) |
1 8 | × | 3 | x | − | 1281 1000 | ( | 1 8 | x | + | 3 | ) | = | 0 |
1 8 | × | 3 | x | − | 1281 1000 | × | 1 8 | x | − | 1281 1000 | × | 3 | = | 0 |
3 8 | x | − | 1281 8000 | x | − | 3843 1000 | = | 0 |
1719 8000 | x | − | 3843 1000 | = | 0 |
1719 8000 | x | = | 0 | + | 3843 1000 |
1719 8000 | x | = | 3843 1000 |
| x | = | 3843 1000 | ÷ | 1719 8000 |
| = | 3843 1000 | × | 8000 1719 |
| = | 427 | × | 8 191 |
| x | = | 3416 191 |
| x | = | 17.884817 |